Charles Dickens: an autographed letter sheet, headed Tavistock house, Tavistock square, London W.C. And dated in manuscript "Wednesday twenty fifth April, 1860" fully written in Dickens' own hand and signed in full with his usual flourish below. Dickens explains his inability to accept "the proposal you convey" for reasons which "are well considered and strong". Accompanied by an original carte-de-visite depicting Dickens at his writing desk (by Mason and Co., Amen corner, London); a reproductio